Self-closing valve.



J. H. ASHTON. SELF CLOSING VALVE. APPLICATION FILED SEPT. 12, 1911.

1,068,556, Patented July 29, 1913.

WITNESSES.

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Jok .Askzorz. BY

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COLUMBIA PLANDGRAPH co.. WASHINGTON n. c.

JOHN H. ASHTON, OF PROVIDENCE, RHODE ISLAND.

SELF-CLOSING VALVE.

Specification of Letters Patent.

Patented July 29, 1913.

Application filed September 12, 1911. Serial No. 18,869.

To all whom it may concern:

Be it known that I. JOHN H. ASHTON, a citizen of the United States,residing at- Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in Self-Closing Valves, of which the following is a specification.

My present invention relates to adjustable self-closing valves proper,and it consists in the novel construction and arrangement of parts, allas hereinafter set forth and claimed.

In valves embodying my improvement, the parts, when assembled, arereadily re-- movably mounted in suitable bodies and em ployed, as thecase may be, in connection with sanitary drinking fountains, globe orstop valves, bibb or faucet cocks, gage cocks, compression valves, &c.

The valve part proper is adapted to be manually opened against the heador pressure of the fluid or water leading to and from it, and isautomatically closed by the force or pressure of the fluid itself, theopening force being then removed. By means of my invention the device isadapted for use in a greater variety of valves; it is quick-opening, andit is capable of being more readily and accurately adjustable withrespect to the degree of opening or inflow as compared with otherself-closing valves. The valve-stem is screwless and is adapted, incooperation with an interlocking stationary cam-shaped member to easilyand positively uncover the valve-seat by a direct push upon thevalve-stem or by turning the latter a short distance axially in eitherdirection.

In the accompanying sheet of drawings, Figure 1 represents a sideelevation of a valve device embodying my improvement, detached from itschambered body or casing, corresponding with the closed position; Fig. 2is a central longitudinal sectional view of the same, but showing thevalve open a preadjusted amount; Fig. 3 is a side elevation of therelatively stationary inner member having its wall provided with acam-shaped opening; Fig. 4 is an end view of it; Fig.

411- represents the latter slightly modified; Figs. 5, 6, 7, S, and 9represent, in reduced scale, side views of the device in the closedposition and mounted in various types of chambered bodies or casings,the latter being sectionally shown.

The improved device A as a whole, capable of being removably screwedinto a suitable casing or body, is represented most clearly in Figs. 1and 2. It consists essen tially of the movable valve-stem membercarrying a wheel 10 at one end and a valve 7) at the other; astationary, laterally apertured plug member a having the valve-stemextending longitudinally through it and terminating in a seat a for thevalve o, and also adapted to be screwed into a suitable body or casingmember, the latter having a seat 8 against which, when the device ismounted in the body, the plug is adapted to bear. It further comprisesan annular memm and its packing p of leather or other suit ablematerial, recessed at p to receive said extension when the valve isclosed. The barrel part a intermediate said end portions is or may bereduced in diameter and provided with one or more lateral openings (4 inits wall for the outflow of water, or other fluid, when the valve isopen, all as clearly shown in Fig. 2.

The valve-stem has a hand-wheel w, or other analogous member, secured toits outer or upper end. Upon manually pushing or turning it, or acombination of both movements, as the case may be, the valve is readilyunseated or opened, as will be later explained. The opposite end portion(Z of the valve-stem is reduced in diameter to receive the valve '2) andthe valve-holding nuts 6. The valve itself may also be bored to receivethe collar part (Z of the valve-stem; the inner edge of the collarextends into the said small annular recess 72 and also into the bore ofthe extension (0 when the valve is seated. Intermediate said collar (land part (Z, both being of substantially the same diameter, the stem isreduced in size, as at (Z to permit ample area between it and the innersurface of the said apertured wall a for the passage of water. At ornear the inner end portion cl the valve-stem is provided with a pin 2'fixed transversely therein, the same extending through opposite sides ofthe stem and capable of engagement with the sides 0 of the cam orwedge-shaped opening formed in the inner end part of the barrel portion6 of the said stationary annular member 6. This last-named member I) isfitted at If and b to the interior of plug a, and also bored at Z2 toreceive the movable valve-stem; the part b is also bored or recessed atb to receive suitable packing material f to prevent leakage around thevalvestem. The packing may have a helical spring 8 bearing against itand the end of a stop-nut or adjusting member a fitted to thescrew-threaded barrel portion If, as clearly shown. In practice themember a and check-nut n are adjusted so as to limit the valve-openingany desired amount, as indicated at t Fig. 1. Fig. 2 represents thevalve thus opened.

It is obvious now that a direct push of sufficient force or pressureupon the operating element 10, secured to the valve-stem, opens thevalve '0 to permit the inflow of fluid, assuming, of course, that thedevice A is first mounted in a chambered casing or body member connectedto suitably arranged inlet and outlet pipes, and normally seated againstseat 8 It is evident also that upon turning the handle to a shortdistance in either direction (see arrows a; Fig. 2) the frictionalengagement of pin i with the corresponding sides of the cam openingcserves to impart additional leverage to the valve in opening the latteragainst the pressure of the intake water or fluid.

Fig. 4e1- represents a slightly modified form of the cam. In this casethe valve and its stem can be turned only in one direction to open thevalve. 7

The following is a description of various uses or applications of myimproved selfclosing valve device A :In Fig. 5 it is represented asscrewed into the body of a sanitary drinking fountain B, provided withinlet and waste pipes h, 72), and outlet or dischargenozzle 00 theannular collar a of plug a being fitted to an annular seat a of the saidbody. In Fig. 6 the device is shown screwed into a casing of the globevalve type, C, provided with inlet and outlet nozzles 72. 71 andinternal annular seat .9. Fig.

represents the device removably mounted in a bibb-cock or faucet Dhaving inlet and outlet ducts 71;, 72 and internal annular seat 8 It mayalso have a bottom nozzle and plug 10 Fig. 8 shows its application to agage-cock E, the latter having an inlet nozzle 71-, an outlet ordischarge nozzle 72. and seat .9 for the annular plugs collar a and Fig9 represents a slight change in the device A in order to adapt it to beemployed as a compression valve H. In this arrangement the main body orcasing is provided. with inlet and outlet nozzles 72,8, 72?, a valveseat 8 a valve proper v and spring 11 the latter in this case serving toautomatically close the valve. In this adaptation of the device thecam-opening 0 is reversed. The

valve-opening is attained by moving the stem (Z outward, or in the arrowdirection, its limit of movement being arrested by the engagement of pin2' with bottom is of camopening.

I claim as my invention and desire to secure by U. S. Letters Patent 1.In a valve of the self-closing type, provided with a chambered body orcasing having an intake and a discharge nozzle and an interior partitiondividing the chamber, said partition having an opening therethroughforming a valve-seat, the combination there- 'ith of a laterallyapertured barrel member having a central opening throughout its lengthadjustably mounted in said body, the inner or lower end of the barrelmember being annular and fitted to said seat, a manually actuatedlongitudinally movable rod or stem passing freely through said opening,a valve proper fixed to the inner end of the rod and normally closingthe said seated annular end of the barrel, an annular member adjustablymounted in the opposite end portion of the said barrel member havingsaid movable rod extending centrally therethrough, and means arranged tocooperate with the rod and the said annular member to assist in openingthe valve, the latter automatically closing by means of the fluidpressure thereagainst when the opening pressure is released. a V

2. In a self-closing valve, the combination with a chambered body havinginlet and outlet openings and an inn-er partition provided with a valveseat, of an apertured main annular member removably secured in said bodyhaving its lower end fitted to said seat, a normally stationary secondannular member adjustably movable in an endwise direction in the mainannular member having a V shaped opening formed in its wall, avalve-stem movably mounted in and extending through both the saidannular members, a valve secured to its lower end and arranged to closeagainst the corresponding end of the main annular member lugs eX-tending laterally from the valve-stem in normal engagement with saidV-shaped opening, constructed and arranged whereby the act of pressingdownward upon the stem imparts angular movementto it for unseating thevalve.

In testimony whereof I have afliXed my signature inpresenee of twoWitnesses.

JOHN H. ASHTON. Vitnesses GEO. H. REMINGTON, CALVIN H. BROWN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

